CN104155776B - Electronic window and control method thereof - Google Patents
Electronic window and control method thereof Download PDFInfo
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- CN104155776B CN104155776B CN201410350134.6A CN201410350134A CN104155776B CN 104155776 B CN104155776 B CN 104155776B CN 201410350134 A CN201410350134 A CN 201410350134A CN 104155776 B CN104155776 B CN 104155776B
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/0305—Constructional arrangements
- G02F1/0311—Structural association of optical elements, e.g. lenses, polarizers, phase plates, with the crystal
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
- G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/0136—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour for the control of polarisation, e.g. state of polarisation [SOP] control, polarisation scrambling, TE-TM mode conversion or separation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/0327—Operation of the cell; Circuit arrangements
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2417—Light path control; means to control reflection
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B9/00—Screening or protective devices for wall or similar openings, with or without operating or securing mechanisms; Closures of similar construction
- E06B9/24—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds
- E06B2009/2464—Screens or other constructions affording protection against light, especially against sunshine; Similar screens for privacy or appearance; Slat blinds featuring transparency control by applying voltage, e.g. LCD, electrochromic panels
Abstract
The invention discloses an electronic window and a control method thereof. The electronic window comprises a substrate, a first polarizer and a second polarizer; the first and second polarizers and the substrate are on the same side or on the different sides. When the electronic window is closed, the first polarizer converts incoming light into first polarized light and shoots the first polarized light out, and polarization direction of the first polarized light is perpendicular to that of the second polarizer; the second polarizer stops the first polarized light from going out. When the electronic window is open, the first polarizer transmits out the incoming light, the second polarizer transmits out the incoming light or converts the incoming light into third polarized light and shoots the third polarized light out, and polarization direction of the third polarized light is the same as that of the second polarizer. The electronic window and the control method thereof have the advantages that the electronic window is safer, and the electronic window can be quickly changed between the open mode and the closed mode at low temperature.
Description
Technical field
The present invention relates to display technology field, particularly to a kind of electronic window and its control method.
Background technology
Traditional curtain typically all adopts textile material to prepare, and curtain is generally separated with window.Send out with scientific and technological
Exhibition, the field such as life staying idle at home and automobile is increasing for controllable electronic window demand.Traditional electronic window is that machinery passes
Dynamic formula electronic window, this mechanical transmission-type electronic window mechanically controls traditional shutter, automatically controls electronics to reach
The purpose of window switch.
With the development of Display Technique, another kind of electronic window application made using electrochromic material or liquid crystal material
More and more extensive.By electrochromic material, color in the case of alive is changed or is divided by liquid crystal this electronic window
Son twists in the case of alive, to change the light transmission capacity of electronic window, thus reaching the purpose controlling electronic window switch.
But there is following technical problem in this electronic window：
1) this electronic window includes liquid crystal material or chemical classes material, and the substrate of glass in electronic window is cracky material
Material, once substrate of glass is damaged, highly toxic liquid crystal material or chemical material will be revealed, and it can be to environment and human body
Produce and significantly endanger, so that the safety of this electronic window is relatively low；
2) in making alive, the liquid crystal material in this electronic window or the change of chemical classes material generation belong to molecule
Motion, the response speed due to liquid crystal material or the molecule of chemical classes material can be substantially affected by temperature.In temperature relatively
When low, the movement velocity of molecule is slack-off, leads to the response speed of electronic window also slack-off, thus reduce electronic window opening and
Switch speed between closed mode.
Content of the invention
The present invention provides a kind of electronic window and its control method, for improving the safety of electronic window and realizing compared with low temperature
The lower switch speed between electronic window opening and closed mode of degree is higher.
For achieving the above object, the invention provides a kind of electronic window, including：Underlay substrate and be located at described underlay substrate
First polarising means of homonymy or not homonymy and the second polarising means；
Under in off position, described first polarising means is used for converting incident light into the first polarized light and by described first
Polarized light projects, and the polarization direction of described first polarized light is vertical with the polarization direction of described second polarising means, and described second
Polarising means is used for stopping that described first polarized light projects；
In the on state, described first polarising means is used for transmiting incident illumination, and described second polarising means is used for
Described incident illumination is transmitted or described incident illumination is converted to the 3rd polarized light and projects, the polarization of described 3rd polarized light
Direction is identical with the polarization direction of described second polarising means.
Alternatively, described first polarising means includes the first conductive layer being oppositely arranged and the second conductive layer, and described first
It is provided with the first electro-optic crystal layer and the first optical material layer, described first electric light is brilliant between conductive layer and described second conductive layer
Body layer is located on described first conductive layer, and described first optical material layer is located on described electro-optic crystal layer；
Under in off position, loading first voltage between described first conductive layer and described second conductive layer, described first
Electro-optic crystal layer is used for, under described first voltage, described incident illumination is converted to the first polarized light and the second polarized light, and described the
The polarization direction of two polarized light is identical with the polarization direction of described second polarising means, and described first optical material layer is used for institute
State the first polarized light reflected and the first polarized light after refraction is projected and described second polarized light reflected with
Described second polarized light is reflected back described first electro-optic crystal layer；
In the on state, non-on-load voltage between described first conductive layer and described second conductive layer, described first electricity
Luminescent crystal layer is used for for described incident illumination being transmitted through described first optical material layer, and described first optical material layer is used for will be described
Incident illumination transmits.
Alternatively, also include the first power supply, described first conductive layer and described second conductive layer are connected by first switch
To described first power supply；
When described first switch closes, described first power supply is between described first conductive layer and described second conductive layer
Load described first voltage；
When described first switch disconnects, described first power supply not to described first conductive layer and described second conductive layer it
Between on-load voltage.
Alternatively, the folder between the interface of described first electro-optic crystal layer and described first optical material layer and horizontal plane
Angle is the first set angle.
Alternatively, the material of described first optical material layer includes crystal or macromolecular material, and described crystal includes electricity
Luminescent crystal or non-electro-optic crystal.
Alternatively, described second polarising means is polaroid；
In the on state, described second polarising means is used for described incident illumination being converted to described 3rd polarized light and penetrating
Go out.
Alternatively, described second polarising means includes the 3rd conductive layer being oppositely arranged and the 4th conductive layer, and the described 3rd
It is provided with the second electro-optic crystal layer and the second optical material layer, described second electric light is brilliant between conductive layer and described 4th conductive layer
Body layer is located on described 3rd conductive layer, and described second optical material layer is located on described second electro-optic crystal layer；
Under in off position, loading second voltage between described 3rd conductive layer and described 4th conductive layer, described second
Electro-optic crystal layer be used under described second voltage will described first polarized light transmission extremely described second optical material layer, described the
Two optical material layers are used for described first polarized light is reflected so that described first polarized light is reflected back described second electric light
Crystal layer；
In the on state, non-on-load voltage between described 3rd conductive layer and described 4th conductive layer, described second electricity
Luminescent crystal layer is used for for described incident illumination being transmitted through described second optical material layer, and described second optical material layer is used for will be described
Incident illumination transmits.
Alternatively, also include second source, described 3rd conductive layer and described 4th conductive layer are connected by second switch
To described second source；
When described second switch closes, described second source is between described 3rd conductive layer and described 4th conductive layer
Load described second voltage；
When described second switch disconnects, described second source not to described 3rd conductive layer and described 4th conductive layer it
Between on-load voltage.
Alternatively, the folder between the interface of described second electro-optic crystal layer and described second optical material layer and horizontal plane
Angle is the second set angle.
Alternatively, the material of described second optical material layer includes crystal or macromolecular material, and described crystal includes electricity
Luminescent crystal or non-electro-optic crystal.
For achieving the above object, the invention provides a kind of control method of electronic window, described electronic window includes：Substrate base
Plate and be located at described underlay substrate homonymy or not the first polarising means of homonymy and the second polarising means；
The control method of described electronic window includes：
Under in off position, described first polarising means converts incident light into the first polarized light and polarizes described first
Light project, described second polarising means stop described first polarized light project, the polarization direction of described first polarized light with described
The polarization direction of the second polarising means is vertical；
In the on state, described incident illumination is transmitted by described first polarising means, and described second polarising means is by institute
State incident illumination to transmit or described incident illumination is converted to the 3rd polarized light and projects, the polarization direction of described 3rd polarized light
Identical with the polarization direction of described second polarising means.
The invention has the advantages that：
In electronic window that the present invention provides and its technical scheme of control method, electronic window includes the first polarising means and the
Two polarising means, lower first polarising means converts incident light into the first polarized light and the second polarising means stops in off position
First polarized light projects, and incident illumination is transmitted by the first polarising means and the second polarising means is saturating by incident illumination in the on state
Project or convert incident light into the 3rd polarized light and project, the electronic window that the present invention provides adopts two polarising means to control
The switch of electronic window, need not adopt liquid crystal material or chemical classes material, thus improve the safety of electronic window；The present invention carries
For electronic window adopt two polarising means to control the switch of electronic windows, polarising means passes through polarized light and realizes control electronic window
Switch is not so that polarising means is influenced by temperature, it is achieved thereby that electronic window opening and closing shape at a lower temperature
Switch speed between state is higher.
Brief description
A kind of structural representation of electronic window that Fig. 1 provides for the embodiment of the present invention one；
Fig. 2 a is closed the index path of lower light for the electronic window in Fig. 1；
Fig. 2 b is in the index path of light under opening for the electronic window in Fig. 1；
A kind of structural representation of electronic window that Fig. 3 provides for the embodiment of the present invention two；
Fig. 4 a is closed the index path of lower light for the electronic window in Fig. 3；
Fig. 4 b is in the index path of light under opening for the electronic window in Fig. 3.
Specific embodiment
For making those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings the present invention is carried
For electronic window and its control method be described in detail.
A kind of structural representation of electronic window that Fig. 1 provides for the embodiment of the present invention one, as shown in figure 1, this electronic window bag
Include：Underlay substrate 1 and the first polarising means 2 and the second polarising means 3 that are located at underlay substrate 1 homonymy.
In the present embodiment, the first polarising means 2 and the second polarising means 3 are respectively positioned on the incident side of underlay substrate 1, and second
Polarising means 3 is located at the light emission side of the first polarising means 2.In actual applications, alternatively, the first polarising means and the second polarization
Device also can be respectively positioned on the light emission side of underlay substrate, and this kind of situation no longer specifically draws.In actual applications, alternatively, first
Polarising means and the second polarising means also can be respectively positioned at the not homonymies of underlay substrate, and this kind of situation no longer specifically draws.
Under in off position, the first polarising means 2 is used for converting incident light into the first polarized light and by the first polarized light
Project, the polarization direction of the first polarized light is vertical with the polarization direction of the second polarising means 3, and the second polarising means 3 is used for stopping
First polarized light projects.In the on state, the first polarising means 2 is used for transmiting incident illumination, and the second polarising means 3 is used for
Convert incident light into the 3rd polarized light and project, the polarization direction of the polarization direction of the 3rd polarized light and the second polarising means 3
Identical.In the present invention, opening is alternatively referred to as light transmission state, and closed mode is alternatively referred to as impermeable light state.
In the present embodiment, the first polarising means 2 may include the first conductive layer 21 being oppositely arranged and the second conductive layer 22, the
It is provided with the first electro-optic crystal layer 23 and the first optical material layer 24, the first electric light between one conductive layer 21 and the second conductive layer 22
Crystal layer 23 is located on the first conductive layer 21, and the first optical material layer 24 is located on electro-optic crystal layer 23.
It is preferable that the interface of the first electro-optic crystal layer 23 and the first optical material layer 24 is inclined-plane, then in the present embodiment
Angle between the interface of the first electro-optic crystal layer 23 and the first optical material layer 24 and horizontal plane is the first set angle θ 1.
That is, the side near the first optical material layer 24 of the first electro-optic crystal layer 23 is inclined-plane, and this inclined-plane and horizontal plane
Angle be the first set angle θ 1；The side near the first electro-optic crystal layer 23 of the first optical material layer 24 is inclined-plane, and
This inclined-plane is the first set angle θ 1 with the angle of horizontal plane.Wherein, the first electro-optic crystal layer 23 and the first optical material layer 24
Interface be the first electro-optic crystal layer 23 near the side of the first optical material layer 24 and leaning on of the first optical material layer 24
The plane that the side of nearly first electro-optic crystal layer 23 contacts and formed.
In the present embodiment, the material of the first electro-optic crystal layer 23 is electro-optic crystal, for example：This electro-optic crystal can include
KDP (KH2PO4), ADP (NH4H2PO4), KDA (KH2AsO4) or KD*P (KD2PO4).Because the first electro-optic crystal layer 23 can
Using different electrooptical materials, the therefore first set angle θ 1 can set according to the refractive index of the material of the first electro-optic crystal layer 23
Put.
In the present embodiment, the material of the first optical material layer 24 may include crystal or macromolecular material, and crystal may include
Electro-optic crystal or non-electro-optic crystal.Wherein, non-electro-optic crystal refers to common crystal.
In the present embodiment, the material of the first conductive layer 21 and the second conductive layer 22 may each comprise ITO, FTO or graphite
Alkene.
In the present embodiment, the material of underlay substrate 1 can include glass or sapphire.
In the present embodiment, the second polarising means 3 is polaroid.The polarization direction of this second polarising means 3 may be configured as appointing
Meaning direction, so that the polarization direction of the second polarising means 3 is parallel to the direction of paper is as a example described in the present embodiment.
Further, this electronic window can also include the first power supply S1, and the first conductive layer 21 and the second conductive layer 22 can lead to
Cross first switch K1 to connect to the first power supply S1.Alternatively, the first conductive layer 21 is connected to the first power supply by first switch K1
The positive pole of S1, the second conductive layer 22 connects to the negative pole of the first power supply S1.When first switch K1 closes, the first power supply S1 can be to
First voltage is loaded, this first voltage can be half-wave voltage between first conductive layer 21 and the second conductive layer 22.When first opens
When closing K1 disconnection, the first power supply S1 is not to on-load voltage between the first conductive layer 21 and the second conductive layer 22.Wherein, the first polarization
Device 2 can be equivalent to first electric capacity and form the between the first conductive layer 21 and the second conductive layer 22 that is to say, that being equivalent to
One electric capacity, when first switch K1 closes, this first capacitive load first voltage.
Fig. 2 a is closed the index path of lower light for the electronic window in Fig. 1, as shown in Fig. 1 and Fig. 2 a, is closing
Under state, between the first conductive layer 21 and the second conductive layer 22, load first voltage, specifically, first switch K1 closes, then the
To loading first voltage between the first conductive layer 21 and the second conductive layer 22, this first voltage can be half-wave electricity to one power supply S1
Pressure, now the first electro-optic crystal layer 23 is birefringece crystal；First electro-optic crystal layer 23 is used for incident illumination under first voltage
Be converted to the first polarized light and the second polarized light, wherein, the polarization side of the polarization direction of the first polarized light and the second polarising means 3
To vertical, the polarization direction of the second polarized light is identical with the polarization direction of the second polarising means 3, in the present embodiment, the first polarization
The polarization direction of device 2 be parallel to paper direction (in figure withRepresent), then the polarization side of the first polarized light
To for the direction (in figure is represented with "●") perpendicular to paper, the polarization direction of the second polarized light is the direction parallel to paper
(in figure withRepresent), and the first electro-optic crystal layer 23 projects the first polarized light and the second polarized light to first
Optical material layer 24；First optical material layer 24 is used for the first polarized light being reflected and penetrating the first polarized light after refraction
Go out and the second polarized light is reflected so that the second polarized light is reflected back the first electro-optic crystal layer 23, wherein, the first optics
Material layer 24 projects the first polarized light after reflecting to the second polarising means 3, and the first optical material layer 24 is to the second polarized light
It is totally reflected so that the second polarized light is reflected back the first electro-optic crystal layer 23；Second polarising means 3 is used for stopping the first polarization
Light projects, specifically, because the polarization direction of the first polarized light is vertical with the polarization direction of the second polarising means 3, therefore first
Polarized light cannot pass through the second polarising means 3, so that electronic window is closed.
Fig. 2 b is in the index path of light under opening for the electronic window in Fig. 1, as shown in Fig. 1 and Fig. 2 b, is opening
Under state, non-on-load voltage between the first conductive layer 21 and the second conductive layer 22, specifically, first switch K1 disconnects, then and first
Not to on-load voltage between the first conductive layer 21 and the second conductive layer 22, now the first electro-optic crystal layer 23 is commonly brilliant to power supply S1
Body；First electro-optic crystal layer 23 is used for for incident illumination being transmitted through the first optical material layer 24, in the process, the first electro-optic crystal
Layer 23 will not convert incident light into polarized light；First optical material layer 24 is used for transmiting incident illumination, specifically, the first light
Learn material layer 24 and incident illumination is transmitted through the second polarising means 3；Second polarising means 3 is used for converting incident light into the 3rd polarization
Light simultaneously projects, and the polarization direction of the 3rd polarized light is identical with the polarization direction of the second polarising means 3；Underlay substrate 1 is inclined by second
The 3rd polarized light transmission that vibrating device 3 projects goes out, so that electronic window is in opening.
The first polarising means in the present embodiment includes the first electro-optic crystal layer and the first optical material layer, and the first electric light is brilliant
Body layer can produce birefringent phenomenon in the presence of the electric field that first voltage produces, simultaneously in the optics rib of the first optical material layer
So that the first polarising means reaches the effect of adjustable polaroid under the cooperation of mirror effect.Again by coordinating with common polaroid, reach
To the effect controlling electronic window luminous flux, thus reaching the purpose controlling electronic window switch.
In the technical scheme of electronic window that the present embodiment provides, electronic window includes the first polarising means and the second polarization dress
Put, lower first polarising means converts incident light into the first polarized light and the second polarising means stops the first polarization in off position
Light projects, and incident illumination is transmitted by the first polarising means and the second polarising means converts incident light into the 3rd in the on state
Polarized light simultaneously projects, and the electronic window that the present embodiment provides adopts two polarising means to control the switch of electronic window, need not adopt liquid
Brilliant material or chemical classes material, thus improve the safety of electronic window；The electronic window that the present embodiment provides adopts two partially
Vibrating device control electronic window switch, polarising means pass through polarized light realize control electronic window switch so that polarising means not
It is influenced by temperature, it is achieved thereby that the switch speed between electronic window opening and closed mode is relatively at a lower temperature
High.
A kind of structural representation of electronic window that Fig. 3 provides for the embodiment of the present invention two, as shown in figure 3, this electronic window bag
Include：Underlay substrate 1 and be located at underlay substrate 1 not the first polarising means 2 of homonymy and the second polarising means 3.
In the present embodiment, the first polarising means 2 is located at the incident side of underlay substrate 1, and the second polarising means 3 is located at substrate base
The light emission side of plate 1.In actual applications, alternatively, the first polarising means and the second polarising means also can be respectively positioned on underlay substrate
Homonymy, this kind of situation no longer specifically draws.
Under in off position, the first polarising means 2 is used for converting incident light into the first polarized light and by the first polarized light
Project, the polarization direction of the first polarized light is vertical with the polarization direction of the second polarising means 3, and the second polarising means 3 is used for stopping
First polarized light projects.In the on state, the first polarising means 2 is used for transmiting incident illumination, and the second polarising means 3 is used for
Incident illumination is transmitted.
In the present embodiment, the first polarising means 2 may include the first conductive layer 21 being oppositely arranged and the second conductive layer 22, the
It is provided with the first electro-optic crystal layer 23 and the first optical material layer 24, the first electric light between one conductive layer 21 and the second conductive layer 22
Crystal layer 23 is located on the first conductive layer 21, and the first optical material layer 24 is located on electro-optic crystal layer 23.
It is preferable that the interface of the first electro-optic crystal layer 23 and the first optical material layer 24 is inclined-plane, then in the present embodiment
Angle between the interface of the first electro-optic crystal layer 23 and the first optical material layer 24 and horizontal plane is the first set angle θ 1.
That is, the side near the first optical material layer 24 of the first electro-optic crystal layer 23 is inclined-plane, and this inclined-plane and horizontal plane
Angle be the first set angle θ 1；The side near the first electro-optic crystal layer 23 of the first optical material layer 24 is inclined-plane, and
This inclined-plane is the first set angle θ 1 with the angle of horizontal plane.Wherein, the first electro-optic crystal layer 23 and the first optical material layer 24
Interface be the first electro-optic crystal layer 23 near the side of the first optical material layer 24 and leaning on of the first optical material layer 24
The plane that the side of nearly first electro-optic crystal layer 23 contacts and formed.
In the present embodiment, the material of the first electro-optic crystal layer 23 is electro-optic crystal, for example：This electro-optic crystal can include
KDP (KH2PO4), ADP (NH4H2PO4), KDA (KH2AsO4) or KD*P (KD2PO4).
In the present embodiment, the material of the first optical material layer 24 may include crystal or macromolecular material, and crystal may include
Electro-optic crystal or non-electro-optic crystal.Wherein, non-electro-optic crystal refers to common crystal.
In the present embodiment, the material of the first conductive layer 21 and the second conductive layer 22 may each comprise ITO, FTO or graphite
Alkene.
In the present embodiment, the material of underlay substrate 1 can include glass or sapphire.
In the present embodiment, the second polarising means 3 includes the 3rd conductive layer 31 being oppositely arranged and the 4th conductive layer 32, and the 3rd
It is provided with the second electro-optic crystal layer 33 and the second optical material layer 34, the second electric light is brilliant between conductive layer 31 and the 4th conductive layer 32
Body layer 33 is located on the 3rd conductive layer 31, and the second optical material layer 34 is located on the second electro-optic crystal layer 33.
It is preferable that the interface of the second electro-optic crystal layer 33 and the second optical material layer 34 is inclined-plane, then in the present embodiment
Angle between the interface of the second electro-optic crystal layer 33 and the second optical material layer 34 and horizontal plane is the second set angle θ 2.
That is, the side near the second optical material layer 34 of the second electro-optic crystal layer 33 is inclined-plane, and this inclined-plane and horizontal plane
Angle be the second set angle θ 2；The side near the second electro-optic crystal layer 33 of the second optical material layer 34 is inclined-plane, and
This inclined-plane is the second set angle θ 2 with the angle of horizontal plane.Wherein, the second electro-optic crystal layer 33 and the second optical material layer 34
Interface be the second electro-optic crystal layer 33 near the side of the second optical material layer 34 and leaning on of the second optical material layer 34
The plane that the side of nearly second electro-optic crystal layer 33 contacts and formed.
In the present embodiment, the material of the second electro-optic crystal layer 33 is electro-optic crystal, for example：This electro-optic crystal can include
KDP (KH2PO4), ADP (NH4H2PO4), KDA (KH2AsO4) or KD*P (KD2PO4).Because the second electro-optic crystal layer 33 can
Using different electrooptical materials, the therefore second set angle θ 2 can set according to the refractive index of the material of the second electro-optic crystal layer 33
Put.
In the present embodiment, the material of the second optical material layer 34 may include crystal or macromolecular material, and crystal may include
Electro-optic crystal or non-electro-optic crystal.Wherein, non-electro-optic crystal refers to common crystal.
In the present embodiment, the material of the 3rd conductive layer 31 and the 4th conductive layer 32 may each comprise ITO, FTO or graphite
Alkene.
Further, the first conductive layer 21 and the second conductive layer 22 can be connected to the first power supply S1 by first switch K1.
Alternatively, the first conductive layer 21 is connected by first switch K1 to the positive pole of the first power supply S1, and the second conductive layer 22 connects to
The negative pole of one power supply S1.When first switch K1 closes, the first power supply S1 can to the first conductive layer 21 and the second conductive layer 22 it
Between load first voltage, this first voltage can be half-wave voltage.When first switch K1 disconnects, the first conductive layer 21 and second
No longer on-load voltage between conductive layer 22.Wherein, the first polarising means 2 can be equivalent to first electric capacity that is to say, that quite
Form the first electric capacity between the first conductive layer 21 and the second conductive layer 22, when first switch K1 closes, this first electric capacity adds
Carry first voltage.
Further, this electronic window can also include second source S2, and the 3rd conductive layer 31 and the 4th conductive layer 32 can lead to
Cross second switch K2 to connect to second source S2.Alternatively, the 3rd conductive layer 31 is connected to second source by second switch K2
The positive pole of S2, the 4th conductive layer 32 connects to the negative pole of second source S2.When second switch K2 closes, second source S2 can be to
Second voltage is loaded, this second voltage can be half-wave voltage between 3rd conductive layer 31 and the 4th conductive layer 32.When second opens
When closing K2 disconnection, second source S2 is not to on-load voltage between the 3rd conductive layer 31 and the 4th conductive layer 32.Wherein, the second polarization
Device 3 can be equivalent to second electric capacity and form the between the 3rd conductive layer 31 and the 4th conductive layer 32 that is to say, that being equivalent to
Two electric capacity, when second switch K2 closes, this second capacitive load second voltage.
Fig. 4 a is closed the index path of lower light for the electronic window in Fig. 3, as shown in Fig. 3 and Fig. 4 a, is closing
Under state, between the first conductive layer 21 and the second conductive layer 22, load first voltage, specifically, first switch K1 closes, then the
To loading first voltage between the first conductive layer 21 and the second conductive layer 22, this first voltage can be half-wave electricity to one power supply S1
Pressure, now the first electro-optic crystal layer 23 is birefringece crystal；First electro-optic crystal layer 23 is used for incident illumination under first voltage
Be converted to the first polarized light and the second polarized light, wherein, the polarization side of the polarization direction of the first polarized light and the second polarising means 3
To vertical, the polarization direction of the second polarized light is identical with the polarization direction of the second polarising means 3, in the present embodiment, the first polarization
The polarization direction of device 2 be parallel to paper direction (in figure withRepresent), then the polarization direction of the first polarized light
It is the direction (in figure is represented with "●") perpendicular to paper, the polarization direction of the second polarized light is the direction (figure parallel to paper
In withRepresent), and the first electro-optic crystal layer 23 projects the first polarized light and the second polarized light to the first light
Learn material layer 24；First optical material layer 24 is used for the first polarized light is reflected and projects the first polarized light after refraction
And the second polarized light is reflected so that the second polarized light is reflected back the first electro-optic crystal layer 23, wherein, the first optics material
The bed of material 24 projects the first polarized light after reflecting to underlay substrate 1, and the second optical material layer 34 is carried out to the second polarized light entirely
Reflection is to be reflected back the first electro-optic crystal layer 23 by the second polarized light；Underlay substrate 1 is by the first polarized light transmission to the second polarization
Device 3；Load second voltage between 3rd conductive layer 31 and the 4th conductive layer 32, specifically, second switch K2 closes, then second
Power supply S2 loads second voltage between the 3rd conductive layer 31 and the 4th conductive layer 32, and this second voltage can be half-wave voltage,
Now the second electro-optic crystal layer 33 is birefringece crystal；Second electro-optic crystal layer 33 is used for the first polarized light under second voltage
It is transmitted through the second optical material layer 34；Second optical material layer 34 is used for the first polarized light is reflected with by the first polarized light
It is reflected back the second electro-optic crystal layer 33, specifically, the second optical material layer 34 is used for the first polarized light is totally reflected to incite somebody to action
First polarized light is reflected back the second electro-optic crystal layer 33, and the therefore first polarized light cannot pass through the second polarising means 3, so that
Electronic window is closed.
Fig. 4 b is in the index path of light under opening for the electronic window in Fig. 3, as shown in Fig. 3 and Fig. 4 b, is opening
Under state, non-on-load voltage between the first conductive layer 21 and the second conductive layer 22, specifically, first switch K1 disconnects, then and first
Not to on-load voltage between the first conductive layer 21 and the second conductive layer 22, now the first electro-optic crystal layer 23 is commonly brilliant to power supply S1
Body；First electro-optic crystal layer 23 is used for for incident illumination being transmitted through the first optical material layer 24, in the process, the first electro-optic crystal
Layer 23 will not convert incident light into polarized light；First optical material layer 24 is used for transmiting incident illumination, specifically, the second light
Learn material layer 34 and incident illumination is transmitted through underlay substrate 1；Incident illumination is transmitted through the second polarising means 3 by underlay substrate 1；3rd leads
Non- on-load voltage between electric layer 31 and the 4th conductive layer 32, specifically, second switch K2 disconnects, then second source S2 is not to the 3rd
On-load voltage between conductive layer 31 and the two or four conductive layer 32, now the second electro-optic crystal layer 33 is common crystal；Second electric light
Crystal layer 33 is used for for incident illumination being transmitted through the second optical material layer 34, and in the process, the second electro-optic crystal layer 33 will not be by
Incident illumination is converted to polarized light；Second optical material layer 34 is used for transmiting incident illumination, so that electronic window is in unlatching
State.
The first polarising means in the present embodiment includes the first electro-optic crystal layer and the first optical material layer, and the first electric light is brilliant
Body layer can produce birefringent phenomenon in the presence of the electric field that first voltage produces, simultaneously in the optics rib of the first optical material layer
So that the first polarising means reaches the effect of adjustable polaroid under the cooperation of mirror effect.Again by be all adjustable polaroid
Second polarising means cooperation, reaches the effect controlling electronic window luminous flux, thus reaching the purpose controlling electronic window switch.
In the technical scheme of electronic window that the present embodiment provides, electronic window includes the first polarising means and the second polarization dress
Put, lower first polarising means converts incident light into the first polarized light and the second polarising means stops the first polarization in off position
Light projects, and incident illumination is transmitted by the first polarising means and incident illumination is transmitted by the second polarising means in the on state, this
The electronic window that embodiment provides adopts two polarising means to control the switch of electronic window, need not adopt liquid crystal material or chemical classes
Material, thus improve the safety of electronic window；The electronic window that the present embodiment provides adopts two polarising means to control electronic window
Switch, polarising means by polarized light realize control electronic window switch so that polarising means is not influenced by temperature, thus
Achieve the switch speed between electronic window opening and closed mode at a lower temperature higher.
In above-described embodiment one, the second polarising means is polaroid, and the material due to polaroid is usually the material containing iodine,
Therefore its light transmission rate is only 50% about, thus greatly reducing the light transmission amount of electronic window.In the present embodiment, second is inclined
Vibrating device includes electro-optic crystal layer and the second optical material layer, and its light transmission rate is higher, thus greatly improving electronic window
Light transmission amount.
The embodiment of the present invention three provides a kind of control method of electronic window, and this electronic window includes：Underlay substrate and being located at
First polarising means of underlay substrate homonymy or not homonymy and the second polarising means.Then the control method of this electronic window includes：
Step 101, in the on state, incident illumination is transmitted by the first polarising means, and the second polarising means is by incident illumination
Transmit or convert incident light into the 3rd polarized light and project, the polarization direction of the 3rd polarized light and the second polarising means
Polarization direction is identical.
Step 102, in off position under, the first polarising means convert incident light into the first polarized light and by first polarize
Light projects, and the second polarising means stops that the first polarized light projects, and the polarization direction of the first polarized light is inclined with the second polarising means
The direction that shakes is vertical.
In actual applications, the execution sequence of modifiable step 101 and step 102.
The control method of the electronic window that the present embodiment provides can be used for controlling above-described embodiment one or embodiment two offer
Electronic window, above-described embodiment one or embodiment two be can be found in the specific descriptions of electronic window, here is omitted.
In the technical scheme of the control method of electronic window that the present embodiment provides, electronic window includes the first polarising means and the
Two polarising means, lower first polarising means converts incident light into the first polarized light and the second polarising means stops in off position
First polarized light projects, and incident illumination is transmitted by the first polarising means and the second polarising means is saturating by incident illumination in the on state
Project, the electronic window that the present embodiment provides adopts two polarising means to control the switch of electronic windows, need not using liquid crystal material or
Person's chemical classes material, thus improve the safety of electronic window；The electronic window that the present embodiment provides adopts two polarising means controls
The switch of electronic window processed, polarising means realizes the switch controlling electronic window so that polarising means is not subject to temperature by polarized light
Impact, it is achieved thereby that the switch speed between electronic window opening and closed mode is higher at a lower temperature.
The electronic window of the present invention can be applicable on automobile, electronic equipment or intelligent fixture, this electronic window and prior art
In mechanical transmission-type electronic window compare, the electronic window of the present invention is more intelligent and convenient.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (11)
1. a kind of electronic window is it is characterised in that include：Underlay substrate and be located at described underlay substrate homonymy or not homonymy the
One polarising means and the second polarising means；
Under in off position, described first polarising means is used for converting incident light into the first polarized light and polarizing described first
Light projects, and the polarization direction of described first polarized light is vertical with the polarization direction of described second polarising means, described second polarization
Device is used for stopping that described first polarized light projects；
In the on state, described first polarising means is used for transmiting incident illumination, and described second polarising means is used for institute
State incident illumination to transmit or described incident illumination is converted to the 3rd polarized light and projects, the polarization direction of described 3rd polarized light
Identical with the polarization direction of described second polarising means.
2. electronic window according to claim 1 is it is characterised in that described first polarising means includes first being oppositely arranged
Conductive layer and the second conductive layer, are provided with the first electro-optic crystal layer and between described first conductive layer and described second conductive layer
One optical material layer, described first electro-optic crystal layer is located on described first conductive layer, and described first optical material layer is located at
On described electro-optic crystal layer；
Under in off position, between described first conductive layer and described second conductive layer, load first voltage, described first electric light
Crystal layer is used for, under described first voltage, described incident illumination is converted to the first polarized light and the second polarized light, and described second is inclined
Shake light polarization direction identical with the polarization direction of described second polarising means, described first optical material layer is used for described the
One polarized light is reflected and projects the first polarized light after refraction and described second polarized light reflected with by institute
State the second polarized light and be reflected back described first electro-optic crystal layer；
In the on state, non-on-load voltage between described first conductive layer and described second conductive layer, described first electric light is brilliant
Body layer is used for for described incident illumination being transmitted through described first optical material layer, and described first optical material layer is used for described incidence
Light transmission goes out.
3. electronic window according to claim 2 is it is characterised in that also include the first power supply, described first conductive layer and institute
State the second conductive layer to connect to described first power supply by first switch；
When described first switch closes, described first power supply loads between described first conductive layer and described second conductive layer
Described first voltage；
When described first switch disconnects, described first power supply does not add between described first conductive layer and described second conductive layer
Carry voltage.
4. electronic window according to claim 2 is it is characterised in that described first electro-optic crystal layer and described first optics material
Angle between the interface of the bed of material and horizontal plane is the first set angle.
5. electronic window according to claim 2 it is characterised in that the material of described first optical material layer include crystal or
Person's macromolecular material, described crystal includes electro-optic crystal or non-electro-optic crystal.
6. according to the arbitrary described electronic window of claim 1 to 5 it is characterised in that described second polarising means is polaroid；
In the on state, described second polarising means is used for described incident illumination being converted to described 3rd polarized light and projecting.
7. according to the arbitrary described electronic window of claim 1 to 5 it is characterised in that described second polarising means includes relatively setting
The 3rd conductive layer put and the 4th conductive layer, are provided with the second electric light brilliant between described 3rd conductive layer and described 4th conductive layer
Body layer and the second optical material layer, described second electro-optic crystal layer is located on described 3rd conductive layer, described second optics material
The bed of material is located on described second electro-optic crystal layer；
Under in off position, between described 3rd conductive layer and described 4th conductive layer, load second voltage, described second electric light
Crystal layer is used for described first polarized light transmission to described second optical material layer, described second light under described second voltage
Learn material layer to be used for described first polarized light is reflected so that described first polarized light is reflected back described second electro-optic crystal
Layer；
In the on state, non-on-load voltage between described 3rd conductive layer and described 4th conductive layer, described second electric light is brilliant
Body layer is used for for described incident illumination being transmitted through described second optical material layer, and described second optical material layer is used for described incidence
Light transmission goes out.
8. electronic window according to claim 7 is it is characterised in that also include second source, described 3rd conductive layer and institute
State the 4th conductive layer to connect to described second source by second switch；
When described second switch closes, described second source loads between described 3rd conductive layer and described 4th conductive layer
Described second voltage；
When described second switch disconnects, described second source does not add between described 3rd conductive layer and described 4th conductive layer
Carry voltage.
9. electronic window according to claim 7 is it is characterised in that described second electro-optic crystal layer and described second optics material
Angle between the interface of the bed of material and horizontal plane is the second set angle.
10. electronic window according to claim 7 is it is characterised in that the material of described second optical material layer includes crystal
Or macromolecular material, described crystal includes electro-optic crystal or non-electro-optic crystal.
A kind of 11. control methods of electronic window are it is characterised in that described electronic window includes：Underlay substrate and be located at described substrate
First polarising means of substrate homonymy or not homonymy and the second polarising means；
The control method of described electronic window includes：
Under in off position, described first polarising means converts incident light into the first polarized light and penetrates described first polarized light
Go out, described second polarising means stops that described first polarized light projects, the polarization direction of described first polarized light and described second
The polarization direction of polarising means is vertical；
In the on state, described incident illumination is transmitted by described first polarising means, described second polarising means by described enter
Penetrate light transmission to go out or described incident illumination is converted to the 3rd polarized light and projects, the polarization direction of described 3rd polarized light and institute
The polarization direction stating the second polarising means is identical.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350134.6A CN104155776B (en) | 2014-07-22 | 2014-07-22 | Electronic window and control method thereof |
| US14/769,168 US9709831B2 (en) | 2014-07-22 | 2014-10-24 | Electronic window and the control method of the same |
| EP14882169.7A EP3173853B1 (en) | 2014-07-22 | 2014-10-24 | Electronic window and control method therefor |
| PCT/CN2014/089437 WO2016011718A1 (en) | 2014-07-22 | 2014-10-24 | Electronic window and control method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350134.6A CN104155776B (en) | 2014-07-22 | 2014-07-22 | Electronic window and control method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104155776A CN104155776A (en) | 2014-11-19 |
| CN104155776B true CN104155776B (en) | 2017-02-15 |
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| CN201410350134.6A Active CN104155776B (en) | 2014-07-22 | 2014-07-22 | Electronic window and control method thereof |
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| Country | Link |
|---|---|
| US (1) | US9709831B2 (en) |
| EP (1) | EP3173853B1 (en) |
| CN (1) | CN104155776B (en) |
| WO (1) | WO2016011718A1 (en) |
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| CN104570418B (en) * | 2014-12-23 | 2018-05-11 | 上海天马微电子有限公司 | A kind of electronic windows curtain built from liquid crystal and its driving method |
| CN107054202A (en) * | 2017-05-04 | 2017-08-18 | 京东方科技集团股份有限公司 | A kind of vehicles and its light control device, light control method |
| CN110109292B (en) * | 2019-05-23 | 2022-02-11 | 京东方科技集团股份有限公司 | Display panel and display device |
| US11595577B2 (en) * | 2020-08-28 | 2023-02-28 | Micron Technology, Inc. | Sensor block |
| CN117289496B (en) * | 2023-11-21 | 2024-02-23 | 武汉光谷航天三江激光产业技术研究院有限公司 | High-precision laser beam scanning device based on electro-optic crystal and use method |
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| US3741626A (en) * | 1971-08-18 | 1973-06-26 | Westinghouse Electric Corp | Communication |
| HU191427B (en) * | 1984-07-16 | 1987-02-27 | Budapesti Mueszaki Egyetem,Hu | Piezooptical effect reduced electrooptical light modulator |
| JPH07104450B2 (en) * | 1990-10-17 | 1995-11-13 | スタンレー電気株式会社 | Biaxial optical element and manufacturing method thereof |
| US6630974B2 (en) * | 1991-11-27 | 2003-10-07 | Reveo, Inc. | Super-wide-angle cholesteric liquid crystal based reflective broadband polarizing films |
| JPH11271816A (en) * | 1998-03-24 | 1999-10-08 | Kanagawa Acad Of Sci & Technol | Device and method for laser light control |
| JP3829548B2 (en) * | 1999-09-24 | 2006-10-04 | ソニー株式会社 | Functional materials and functional elements |
| JP3824885B2 (en) * | 2001-05-28 | 2006-09-20 | 富士通株式会社 | Polarization corrector and wavelength division multiplexing apparatus using the same |
| JP4632403B2 (en) * | 2004-03-26 | 2011-02-16 | 大日本印刷株式会社 | Antireflection film |
| EP2100289A1 (en) * | 2006-11-30 | 2009-09-16 | Koninklijke Philips Electronics N.V. | Display device using movement of particles |
| EP2188668A1 (en) * | 2007-08-27 | 2010-05-26 | Koninklijke Philips Electronics N.V. | Light output device |
| CN101750760A (en) * | 2008-12-17 | 2010-06-23 | 福建福晶科技股份有限公司 | Electro-optical switch with strong turn-off capacity of light |
| US9097832B2 (en) * | 2010-04-27 | 2015-08-04 | Xiao Lin Yu | Liquid crystal display (LCD) system and method |
| US8514475B2 (en) * | 2010-10-27 | 2013-08-20 | Lawrence Livermore National Security, Llc | Electro-optic device with gap-coupled electrode |
| US9581859B2 (en) * | 2011-04-15 | 2017-02-28 | Panasonic Corporation | Optical deflector, optical deflection apparatus, and liquid crystal display apparatus using the optical deflector and the optical deflection apparatus |
| EP2810108B1 (en) * | 2012-01-31 | 2018-01-10 | Alphamicron Incorporated | Electronically dimmable optical device |
| CN102707460B (en) * | 2012-03-16 | 2014-08-06 | 京东方科技集团股份有限公司 | Display and manufacturing method thereof |
| TWI501013B (en) * | 2013-04-01 | 2015-09-21 | Au Optronics Corp | Tri-state liquid crystal display panel |
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2014
- 2014-07-22 CN CN201410350134.6A patent/CN104155776B/en active Active
- 2014-10-24 EP EP14882169.7A patent/EP3173853B1/en active Active
- 2014-10-24 WO PCT/CN2014/089437 patent/WO2016011718A1/en active Application Filing
- 2014-10-24 US US14/769,168 patent/US9709831B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2016011718A1 (en) | 2016-01-28 |
| CN104155776A (en) | 2014-11-19 |
| EP3173853A4 (en) | 2018-06-27 |
| EP3173853A1 (en) | 2017-05-31 |
| US20160266417A1 (en) | 2016-09-15 |
| EP3173853B1 (en) | 2022-11-30 |
| US9709831B2 (en) | 2017-07-18 |
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